DragonFly On-Line Manual Pages

POWERNOW(4)           DragonFly Kernel Interfaces Manual           POWERNOW(4)

NAME
     powernow -- PowerNow! Technology support

SYNOPSIS
     To load this driver as a module at boot time, place the following line in
     loader.conf(5):

           powernow_load="YES"

DESCRIPTION
     The powernow driver provides support for the PowerNow! Technology present
     in AMD K8 CPUs.  Please note that powerd(8) should be preferred if it is
     working properly on your system.

     If the CPU is supported powernow creates the following variables in the
     machdep.powernow branch of the sysctl(3) MIB.

           frequency.available  The list of frequencies supported by powernow
                                for the CPU (read only).

           frequency.current    The current CPU frequency (read only).

           frequency.target     The target CPU frequency (read/write).

SEE ALSO
     powerd(8)

HISTORY
     The powernow driver first appeared in DragonFly 2.3.

DragonFly 5.5                    June 4, 2018                    DragonFly 5.5